Improvement in metallic packing



R. DOTY. Metallic Packing;

No. 222,388. Pat ented Dec.9, I879.

ATTORNEYS,

WITNESSES NPETERS, FHDTO-LITHOGRAPHER, WASHINGTON. I: C

UNITED STATES PATENT OFFICE.

nHonoLPHUs DOTY, on G-LEVELAND, OHIO.

IMPROVEMENT IN M ETALLIC PACKING.

Specification forming pant of Letters Patent No. 222,388, dated December 9,1879; application filed June26, 1879.

To all whom it may concern:

Be it known that I, RHOD'OLPHUS DOTY, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Metallic Packing; and

. I do hereby declare the following to be a full, clear, and exact description of the invention,

such as will enable others skilledin the art to which it pertains to make and use it, reference bein ghad to the accompanying drawings, which form part of ,this specification,

My invention relates to metal packing for H use in pipe-joints, cylinder-heads, 850.; and it consists of sheet metal out to the desired shape a to fit the size and style of the cross-section of [the joint to which itis to be adapted, and,

\ when thus shaped, to be corrugated in the direction of its circumference or periphery.

. In, the drawings, Figure lrepresents, in

plan view, a few of an indefinite variety of styles of metal packing constructed according to my invention. Fig. 2 represents, in cross section, a few of many styles of corrugating said packing. Fig. 3 shows saidj packing as 3 placd in a pipe-joint prior to said joint being closed.

Fig. 4 represents the same with said joint nearly closed, illustrating the operation of my packing.

In the said drawings, A is the packing; B B, the abutting ends of two pipe-sections, or, as the case might be, a steam-cylinder and its head, a steam-chest and its cap, or the. like.

The packing A is constructed of metal, preferably of copper, zinc, or some non-corrosive non-oxidizable material. This packing is shaped annularly, square, octagonal, oval, or otherwise, toysuit the fashion of the joint to be packed. The packing A is formed from sheet metal, and is provided with one, two, or more corrugations, A, in {the line of its circumference, substantially as shown in the draw ings. v

It will be observed that, when placed be-v tween the abutting ends of two pipe-sections,

or the like, as shown in Figs. 3 and 4, there will be afforded three points of bearing for" each corrugation. These points are represented in the drawings at a a a.

Now, when the joints are screwed together, with the packing between them, as shown-in Figs. 3 and 4, the corrugated sheet A will not" only yield in such a manner as to allow of a proper opposition of said sections, but a tight j joint will be secured, which will most eflectu-v f ally prevent any escape of steam, water, or gas 3 I under any pressure.

In the use of this packing it is unnecessary v to employ anything additionalsuch as red. lead, or the like-to secure perfect tightness.

Not only is this advantage obtained; but the packing is practically indestructible when made from copper, zinc, or equivalent non-con rosive substance. It moreover possessesthe advantagesof great cheapness, of quick use,

and certain application, and of permitting as ready opening of the joint quired.

What I claim isi l The combination, with the meeting-surfaces should this be rein a joint, of a corrugated metallic packing in-' terposed fiatwise between the same, whereby said corrugations may be compressed by said RHODOLPHUS DOTY. 

